Device for cutting double-pile fabrics.



PATENTBD JUNE 30. 1903.

0. HALLENSLEBBN. DEVICE FOR CUTTING DOUBLE PILE FABRICS.

APPLICATION FILED APR. 28, 1902.

N0 MODEL.

' Wi wam/ens.-

UNITE STATES Patented June 30, 1903.

PATENT OFFICE.

DEVICE FOR C UTTING DOUBLE-PILE FABRICS.

SPECIFICATION forming part of Letters Patent No. 732,37, dated June 30, 1903.

Application filed April 28, 1902. Serial No. 105,072. (No model.)

To aZZ whom it may concern.-

Be it known that I, 0111 0 HALLENSLEBEN, a subject of the King of Prussia, German Emperor, and a resident of 1 Hitzlisbergstrasse, Lucerne, in the Confederation of Switzerland, have invented a new and useful Device for Cutting Double-Pile Fabrics, of which the following is an exact specification.

My invention relates to the manufacture of double-pile fabrics, and more especially to a device for cutting the same, and has especially for its purpose to prevent the bars for keeping both ground-webs at a uniform distance from each other being bent and the blades for cutting the piles becoming blunt.

My invention is represented in the accompanying drawings, in which- Figure 1 shows theconstruction of the steel bars for keeping the ground-webs at a uniform distance from each other. Figs. 2, 3, and 4 show the construction of the blades to be fixed to these bars; and Fig. 5 is 9. diagrammatic view of the whole device. 7

The arrangement of the double-pile loom which I employ is similar to those already known, and any apparatusknown for actuating the rods of the ordinary pile-loom can be employed, so that I will not describe the details of these parts.

The characteristic feature of my invention consists in the fact that by weaving in broad steel bars both ground-Webs are constantly kept at a uniform distance from each other and that by the arrangement of the blades fixed at the middle of these bars the naps are out exactly in the middle between the two ground-webs when the bars are withdrawn. Hitherto this arrangement has had the great disadvantage that the blades fixed in the middle of the bars, owing to friction, became blunt and that the bars bent. I avoid this by preventing the cutting edge of the blades touching the preceding bar.

The blade for cutting the naps is not welded or soldered to the steel bar, but is detachably fixed to it. The height of the bar, the construction of which may be seen from Fig. 1, is reduced at one end a to half the distance of the ground-webs. The bladeconsists of a steel angle, one side, b, of which serves for fixing it to the part a of the steel bar, while the other side, 0, forms the blade proper.

The side I) is shorter than the side 0 in order to facilitate the sharpening of the blade- L. 6., of that part of it which mainly effects the cutting. The blades are fixed to the steel bars by means of screws, bolts, or the like. Nowin order to prevent the bars when they are Withdrawn from sliding over the cutting edge of the blade of the following bar a lever e is provided, which lever is pivoted at g in the breast-rail d of the loom. The free end of this lever rests upon the race-board f of the lathe 2'. It will be understood that in the position of the lathe in which the shuttle is crossed only the extremity of the lever e must rest upon the race-board in order to prevent the shuttle pushing against this lever. The lever e is provided with a nose h. After or before the shuttle is crossed one of the steel bars is brought into the shed-that is to say, asteel bar is shiftedfover the shuttle-race so that in laying the lathe the steel bar slides over the upper edge of the lever e, whereby the blade fixed to this steel bar in the last part of its travelthat is to say, shortly before the bar arrives at the nose h-stands above the blade of the preceding bar and will remain above this blade when the bar has passed over the nose h,and consequently sinks downward. The blades consequently are situated step-like one above the other.

As will be seen from the drawings, there are always several steel bars situated between the ground-webbings. The first steel bar is drawn out after a new one is shifted behind the last steel bar. By drawing out the first steel bar the naps are out exactly in the middle between the two ground-webbings, as the blades are always fixed to the bars midway the height of the same.

In drawing out the first steel bar this bar cannot slide over the cutting edge of the blade fixed to the following bar, as the cutting edge of this blade does not touch the steel bar in consequence of the blades being situated step-like, one above the other. The cutting edges of the blades can consequently not become blunt and a bending of the steel bars is also avoided.

Having thus fully described the nature of this invention, what I desire to secure by Letters Patent of the United States is- 1. In double-pile looms, the combination IOO with the lathe and breast-rail of bars adapted to be inserted between the double-pile webs and blades fixed to these bars midway the height of the same, with a lever pivoted in the breast-rail and having one end resting upon the race-board of the lathe, said lever being provided on its upper edge with a nose, substantially as described and for the purpose set forth.

2. In double-pile looms, the combination with the lathe and breast-rail of bars adapted to be inserted between the double-pile webs, and blades fixed to these bars midway the height of the same, said blades consisting of a steel angle, one side of which is screwed to the bars, while the other side forms the blade proper, with a lever pivoted in the breast-rail and having one end resting upon the race-board of the lathe, said lever being provided on its upper edge with a nose, substantially as described and for the purpose set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

OTTO HALLENSLEBEN.

Witnesses:

J OH. FLUDER, F. T. HEGGLI. 

